title: Osteoarthritis: All types of trouble--defining OA in the genomic era.
abstract: OA is not a disease in short supply of phenotypic definitions. Indeed, numerous classification options complicate the design of genetic studies seeking associations within the obscuring array of heterogeneity. New recommendations offer some progress toward clarifying OA definitions, but much-needed guidelines are wanting.
authors.affiliation: Musculoskeletal Research Group, Institute of Cellular Medicine, Newcastle University, 4th Floor Catherine Cookson Building, The Medical School, Framlington Place, Newcastle upon Tyne NE2 4HH, UK. john.loughlin@ncl.ac.uk
authors.forename: John
authors.initials: J
authors.lastname: Loughlin
mesh_terms: D056726:Genetic Association Studies; D023281:Genomics; D017408:Guidelines as Topic; D006801:Humans; D010003:Osteoarthritis / Q000145:classification / Q000175:diagnosis / Q000235:genetics; D010641:Phenotype